refs #2048 - add DoNotTrack plugin v0.3

git-svn-id: http://dev.piwik.org/svn/trunk@6201 59fd770c-687e-43c8-a1e3-f5a4ff64c105

1 files changed, 62 insertions, 0 deletions

diff --git a/plugins/DoNotTrack/DoNotTrack.php b/plugins/DoNotTrack/DoNotTrack.php
new file mode 100644
index 0000000000..b9f7b51d2e
--- /dev/null
+++ b/plugins/DoNotTrack/DoNotTrack.php
@@ -0,0 +1,62 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ * 
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ * @version $Id$
+ * 
+ * @category Piwik_Plugins
+ * @package Piwik_DoNotTrack
+ */
+
+/**
+ * Ignore visits where user agent's request contains either:
+ * - X-Do-Not-Track header (used by AdBlockPlus and NoScript)
+ * - DNT header (used by Mozilla)
+ *
+ * @package Piwik_DoNotTrack
+ */
+class Piwik_DoNotTrack extends Piwik_Plugin
+{
+	/**
+	 * Return information about this plugin.
+	 *
+	 * @see Piwik_Plugin
+	 *
+	 * @return array
+	 */
+	public function getInformation()
+	{
+		return array(
+			'description' => 'Ignore visits with X-Do-Not-Track or DNT header',
+			'author' => 'VIP Software Technologies Inc.',
+			'author_homepage' => 'http://activeanalytics.com/',
+			'version' => '0.3',
+			'translationAvailable' => false,
+			'TrackerPlugin' => true,
+		);
+	}
+	
+	public function getListHooksRegistered()
+	{
+		return array(
+			'Tracker.Visit.isExcluded' => 'checkHeader',
+		);
+	}
+
+	function checkHeader($notification)
+	{
+		$setting = @Piwik_Tracker_Config::getInstance()->Tracker['do_not_track'];
+		if($setting === '1' &&
+			((isset($_SERVER['HTTP_X_DO_NOT_TRACK']) && $_SERVER['HTTP_X_DO_NOT_TRACK'] === '1') ||
+			(isset($_SERVER['HTTP_DNT']) && $_SERVER['HTTP_DNT'] === '1')))
+		{
+			$exclude =& $notification->getNotificationObject();
+			$exclude = true;
+
+			$trackingCookie = Piwik_Tracker_IgnoreCookie::getTrackingCookie();
+			$trackingCookie->delete();			
+		}
+	}
+}